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When Lying Gets Space Age Results
Toronto - May 29, 2000 - A well-calculated fib is proving highly useful when it comes to robots in space and could reduce the amount of time and effort needed to complete tasks during space missions, a U of T engineer has discovered. Professor Christopher Damaren of the Institute for Aerospace Studies has devised a method to control vibrations and reduce deformations of robots assembling or repairing objects in outer space. By changing the mathematical calculations for robotic movement -- or "lying" to the control system -- he can decrease vibrations as robots move an object from one place to another. These robots, he notes, are modelled after the human arm and are often required to manipulate objects much larger than the robot itself. This can put stress on the arm, leading to vibrations or deformations difficult for scientists and astronauts to control. "The result is it takes more time to complete a task because it takes more time to regain control of the arm." Damaren's method involves entering a "corrected" equation into the system, rather than actual data. The work can then be accomplished more quickly, with fewer shuttle missions needed for repairs. This research can be applied to the deployment and retrieval of objects from a space shuttle's cargo bay or capturing and de-spinning of satellites, notes Damaren, who co-authored the paper with Eftychios Christoforou of the University of Canterbury in New Zealand. The Natural Sciences and Engineering Research Council of Canada and the University of Canterbury funded the study. Janet Wong is a news services officer with the Department of Public Affairs. CommunityEmail This Article Comment On This Article Related Links Space
Satellite Launch To Boost DTH In India
Calcutta, India (SPX) Dec 28, 2005The successful launch Thursday of India's heaviest satellite from spaceport of Kourou in French Guyana may have boosted the country's space research efforts to yet another level, but it has also lifted the spirits of at least three Direct-To-Home televisions broadcasters, one of which has been waiting for years to launch its services in India. |
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